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Alternate Horizontal Vent Terminations (Dual Pipe)
H
A. 90º medium radius elbow
B. Flue/vent pipe
C. 12" (30.5 cm) minimum
from wall
D. Screen
Standard Horizontal Terminations (Dual Pipe)—Above
Highest Anticipated Snow Level
A
H
G
A. Support straps
B. 24" (61 cm) maximum, 3"
(7.6 cm) minimum
C. 12" (30.5 cm) minimum from wall
D. Tee or 90º elbow turned down
Alternate Horizontal Terminations (Dual Pipe)—Above
Highest Anticipated Snow Level
G
F
E
A. 90º medium radius elbow
B. Flue/vent pipe
C. 24" (61 cm) maximum, 3"
(7.6 cm)
22
B
A
C
G
F
D
E
E. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
F. Combustion air intake
G. 24" (61 cm) maximum, 3" (7.6 cm)
minimum
H. 24" (61 cm) maximum radius
C
B
D
F
E
E
A
E. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
F. Screen
G. 90º medium radius elbow
H. Combustion air intake
A
B
D
C
D. Combustion air intake
E. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
F. 24" (61 cm) maximum radius
G. Screen
Vent/Intake Terminations for Installation of Multiple Direct
Vent Furnaces
If more than one direct vent furnace is to be installed vertically
through a common roof top, maintain the same minimum
clearances between the exhaust vent and air intake terminations
of adjacent furnaces as with the exhaust vent and air intake
terminations of a single furnace.
If more than one direct vent furnace is to be installed horizontally
through a common side wall, maintain the clearances as shown
in "Horizontal Venting of Multiple Furnaces" illustration. Always
terminate all exhaust vent outlets at the same elevation and
always terminate all air intakes at the same elevation.
Horizontal Venting of Multiple Furnaces
B
A. 90º medium radius elbows
B. Flue/vent pipes
C. 12" (30.5 cm) minimum to
roof or highest anticipated
snow level
Concentric Vent Termination
Refer to the directions provided with the Concentric Vent Kit
(DCVK) for installation specifications.
Side Wall Vent Kit
This kit is to be used with 2" (5.1 cm) or 3" (7.6 cm) direct vent
systems. The vent kit must terminate outside the structure and
may be installed with the intake and exhaust pipes located side-
by-side or with one pipe above the other.
NOTE: Do not use the Side Wall Vent Kit for single pipe
(nondirect vent) installations.
Refer to the directions furnished with the Side Wall Vent Kit (Part
Number 0170K00000S) for installation specifications
Connect Venting
1. Run venting to the furnace, see "Plan Vent System."
2. Attach the air intake pipe to the furnace connector.
3. For nondirect vent installations only, install the inlet air
restrictor plate in the air inlet pipe. See Nondirect vents in
"Venting Requirements" for details.
4. Install the condensate drain assembly as shown.
5. Attach the flue pipe connector to the furnace.
6. Make sure all vent connections do not leak.
7. Check that the exhaust vent pipe terminates outside the
building.
8. After the condensate disposal system has been installed,
prime the trap system by slowly pouring 8 oz (250 mL) of
water into the drain trap.
A
B
F
C
F
G
D
H
E
D. 12" (30.5 cm) minimum to roof or
highest anticipated snow level
E. Screens
F. 24" (61 cm) maximum, 3" (7.6 cm)
minimum
G. 3" (7.6 cm) minimum
H. Combustion air intakes
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